Demountable rim.



P s. WHITI NG. .DEMOU'NTABLE mm.

1 APPLICATION FILED Dc.26. III I4.

Patented Feb. 8,1916.

2 SHEETS-SHEET I.

III In 9 J THE COLUMBIA PLANOGRAPH cu, WASHINGTON, n. c.

P. S. WHITING.

DEMOUNTABLE RIM. APPLICATION FILED DEC. 26, 1914 Patented Feb. 8,1916.

2 SHEETS-SHEET 2- [III-ll: g

q/vflmey' flan am w W 0% w I T1 15 COLUMBIA FLAIjOGRAPI-i c0..WASHINGTON. D. c.

invention Fig. 5 is tinrrnn smarts e NT WEE PHINEAS s. WHITING, orAKRON, 01110, nssrenon TO Mania E. WT-IITING, OZEZWAYNE COUNTY,MICHIGAN.

. DEMOUNTA 'BIM.

Specification of Letters Patent. v

Application filed December 26, Serial TN 879,178. I

To all whom it may concern."

' Be it known that I, PHINEAS S. WH TING,

a citizen of the United States of- America, residing at Akron, in thecounty of Summit" and State of @1110, have invented CBItillIiIlBW anduseful Improvementsin Demountable Rims, of which the following is aspecification, reference being had therein to the accompanying drawings.

My invention aims able rim for vehicle wheels wherein simple andeffective means are employed/for detachably holding a rim upon a wheel,also novel means for detachably holding a tire shoe or casing upon arim. The means em-' Figure 1 is a side elevation of a portion of avehicle wheel provided with a rim in accordance with this invention;Fig. 2 is a perspective view of a portion of the main rim member; Fig. 3is asimilar view of another rim member; Fig. 4 1s a cross sectional viewof a demountable rim in accordance with this a longitudinal sectionalview taken on the Fig. 6 is a similar view taken on the line VI-VI ofFig. 4;; Fig.7 is sectional view taken on or about the line V-V of Fig.4:, illustrating a finger piece for releasing the rim of a wheel; Fig. 8is a perspective view of a portion of a locking ring;Fig. 9 is anenlarged perspective view of a portion of the ring illustrating a ballbearing, and Fig. 10 is a perspective view of a portion of a felly band.v

The present invention includes structural elements disclosed in mypending application filed Nov. 2, 1914, Serial No. 869,819;

The reference numeral 1 denotes a felly band in the form of an annulusor band that is shrunk or otherwise mounted upon a wheel felly 2, saidmember being of a greater width than the felly whereby the side edgesthereof project from the sides of thefelly.

to provide a demount':

line V--V of Fig. v41';

a longitudinal The inner side edge: of thefellylband 1 an upstandingflange 3 terminating in a seat i and a rib 5, said seat cooperating withsaid ribin holding a sectional rim, as will hereinafter appear. Theouter side edge of the felly band 1 has adepending flange 6 terminatlngin a rail 7 and asharp edge 8, said em n 8, 1916.

sharp edge engaging in theouter wall of I the felly 2 and cooperatingtherewith in form ng a channelor annular compartment that incloses thelocking device of the. rim.

The flange 6 has spaced slots 9 communieating with slots 10in the fellyband 1, the purpose of whichwill presently appear. Detachablyjmounted-uponthe felly band 1 1s an outer rim member 11 provided with adepending flange 12 that engages the outerv edge of the felly band 1.,The inner edge of the member llrestsiuponthe annular seat 4 and thisinner edge is cut away to provide.

1 an annular seat 1 1 and slots 15, theslots 15 being spaced in theannular seat, The outer edge of the rim member 11 has a peripheral riband the-flange 12 ofsaid member is provlde d with spaced inwardlyprojecting lugs 16. The innerside of the flange 12, at each lug, hasaboss 17 provided with a lug 18 in parallelism with thelug 16, said lugsformlng a slot 19, as best 'shown' in- Figs. 2 and 4. Theslots-9 and 10of the felly'band' 1 provide clearance for the lugs .16, and 18 of theouter rim member 11 and'the lugs 16 are adapted to fill and close vtheslots 9 and thereby prevent dirt and. foreign matter from entering thechannelv or annular compartment between the felly 2 andthe flange. 6 p

of the fell-y band 1.

Housed within the channel or annular compartment and shif tablecircumferentially thereof 1s a locking ring 20, said ring being movable.-in-the slot.19 and of :less width than said slot, wherebythe'lock'ingring can be easlly shifted. The locking ring has the periphery thereofprovided with spaced re- 'cesses 21providing clearance for the innermostlug 18 as'the outer rim member is placed upon the felly band. Adjacentan end wall of eachrecess of the locking ring and upon the outer sidethereof is an enlargement 22, serving two purposes. First, the.enlargements engage the inner side of the flange 6 and maintain thelocking ring 20 in' frictional contactwith said flange,

thereby r educingwear and tear upon the locklng rlng to a nnmmum and byreason '34 of greater of the small frictional contact with the flangepermitting of the locking ring being easily and quickly shifted withinthe channel or annular compartment. In other Words, the locking ring hasjust sufficient contact to guide it in its movement, otherwise thefriction betweenthe flange 6 and the locking ring would be such as toinvolve a laborious task when shifting the ring. Second, the

enlargements 22 cooperate with the body of the locking ring incompletely filling the slots 19 and besides preventing withdrawal of theouter rim member 11, said member is preventedfrom chattering or shiftingupon the felly band 1.

Interposed between the locking ring 20 and the rail 7 of the flange 6 isa plurality of anti-frictional bearings '23, preferably in the form' ofballs held in spaced relation by the inner edge of the locking ringshown in Fig. 9. r

In order that the locking ring 20 can be manually shifted withoutresorting to the use of special tools, the flange 6 has a longitudinalslot 2 and extending through said slot is a hand or finger piece 25,which is secured to the inner side of the locking ring by screws 26 orother fastening means. The end Walls of the slots 24 limit the movementof the finger piece 25 therein and consequently the "shifting of thelocking ring 20, and by moving the finger piece from one end of the slot24: to the opposite end the enlargements 22 of the locking ring areeither moved into the slots 19 or out of the slots. Detachably mountedupon the annular seat 14 of the outer rim member is an inner rim member27. The outer edge of the inner rim member 27 has a peripheral rib 28adapted to be engaged by the rib 5 of the felly band 1; The peripheralrib 28 of the inner rim member and the peripheral rib 13 of the outerrim member cooperate in retaining reversible clamping members 29 inengagement with the clenoher edges 30 of a tire shoe or casing 31. Theclamping members 29 are reversible in order to be used in connectionwith'the tire shoe or casing of a type other than that shownin Fig. 4.The inner edge of the inner rim member 27 is provided with spacedinwardly projecting lugs '32 that are bifurcated or forked, as

at 33.. The slots 15 in the annular seat 14' of'the outer rim member 11provide clearance for the lugs 32 and said lugs are adapted to alinewith the bosses 17 at the outer edge of the outer rim member 11. Thebosses 17 are provided with tapering openings 34 in communication withtapering openings 35 in the flange 12, the taper of the openings 35being the reverse of the taper of the openings 34 and the openingslength than the openings 35. Extendingthrough these openings are bolts.36 having heads 37 seated in the tapering openings 5550f the flange 12.The threaded end of each bolt 36 extends through the bifurcation of thelug 32 and is provided with a spring washer '38 and a nut 39. The springwasher 38 is of the Verona type and is interposed between the nut 39 andthe lug 32. V

In operation, after the inner and outer rim members are assembled andheld by the bolts 36, the tire is inflated and in this conditionconstitutes a demountable rim. After the demountable rim is placed uponthe felly band and locked in engagement therewith, the bolt heads 37 areturned a quarter or half revolution, counterclockwise, thereby releasingthe outer rim member sufliciently relative to the inner rim member topermit the internal pressure of the tire casing to distend the rimmembers, causing the inner rim member to become clamped against thefelly band and the outer rim member to become clamped against thelocking ring and said ring against the felly band. It is thereforeapparent that I have devised an airlocked demountable rim and when it isdesired to remove the demountable rim, it is necessary to rotate thebolts 36 clockwise, shift the locking ring to release the demountablerim, and then remove the rim. The bolts are held in position connectingthe inner and outer rim members by reason of the internal pressure ofthe tire casing. l/Vith the demountable rim removed from the wheel, thebolts can be easily swung to release one rim member relative to'theother and this operation is facilitated when air is released from thetire casing.

Considerable importance is attached to the fact that the internalpressure of the tire casing 31 upon the inner and outer rim memberscauses said members to be distended, particularly the inner rim memberwhich is held and sealed against the rib 5 of the felly band. The outerrim member is held against the locking ring and said locking ringagainst the flange 6 of the felly band, consequently there is a constantair produced pressure that tends to securely lock the inner and outerrim members relative to the felly band.

YVhile in the drawings there is illustrated a preferred embodiment of myinvention, it is to be understood that the structural elements aresusceptible to such changes, as in the size, shape and mannerofassemblage, as fall Within the scope of the appended claims.

What I claim is 1. In a demountable rim, a felly band, a locking ringshiftable circumferentially of said band, and a circumferentially splitrim on said felly band adapted to hold a tire and secured in place bysaid locking ring with the parts of said rim disposed to be crowded awayfrom each other by pressure of air within said tire, whereby said rim islocked relative to said felly band.

2. A demountable rim comprising an outer annular member, an innerannular rim member seated upon the inner edge of said outer annular'rimmember and adapted to cooperate therewith in holding a tire, and meansshiftable within and circumferentially of said outer rim member adaptedto secure said members in place, said members being disposed to becrowded away from each other by pressure of air'in the tire to hold saidmeans locked relative to said outer annular rim member.

8. In a demountable rim, an outer rim member having transverse slots, aninner rim member slidable on said outer rim member bosses forming partof the outer rim member, lugs forming part of the inner member andextending through the slots of said outer rim member and transverselyalining with said bosses, and means loosely held by said bosses andextending through said lugs for holding the inner rim member relativetothe outer rim member.

4:. In a demountable rim, an outer rim member having the inner edgethereof provided with open transverse slots, bosses forming part of saidouter rim member and five cents having tapering openings therein, aninner rim member slidable transversely of said outer rim member,bifurcated lugs carried by said inner rim member and extending throughthe slots of said outer rim member and alining with the bosses of saidouter rim member, and bolts loosely heldin the tapering openings of saidbosses and clamped in the bifurcation of said lugs to retain said innerrim member on said outer rim member. 7

5. In a demountable' rim, a felly band, an outer rim member thereon, alocking ring between said outer rim member and said felly band andthereof, and an outer rim member and movable transversely thereof, saidrim members being distended by-lnternal pressure of the tire cas-' ingadapted for mounting on said rim members whereby the outer rim member isheld against said ring against said felly band, and said inner rimmember held against said felly band.

In testimony whereof I affix my signature in presence of two witnesses.a

PHINEAS S.

Witnesses:

ANNA M. Donn, KARL H. BUTLER.

each, by addressing the Commissioner of Patents Washington, D. G."

shiftable oircumferentially inner rim memberon said looking ring andsaid locking WHITING.

